why not use an alternative mailbox bound to your phone as I set up?
my ad hoc gmx.com email address retrieves the emails from other providers (even multiple ones) through IMAP/POP3 (Mail Collector feature), and then you can download them to Modest via IMAP, deleting them all after reading if you wish, to keep it clean and fresh, or keeping just the important/personal ones...
(tip: it's possible to get all the emails in the Inbox folder instead of the 'Mail Collector'-special folders, look between the account settings)

may help some people :-)